Desk lamp



FIG. 1 is a front perspective view of a desk lamp;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right elevation view thereof

FIG. 5 is a left elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines showing the underside of the lamp head and the small circular features and oval feature on the lamp stem, illustrate portions of the desk lamp that form no part of the claimed design. 

CLAIM The ornamental design for a desk lamp, as shown. 